In an experiment, A 5kb DNA undergoes PCR using primer, after electrophoresis instead getting a 5kb band, two set of PCR band are found of 5kb and 3kb, this is due to

TLS Online TPP Program

#Question id: 12705

#SCPH12 I Genetics

In Neurospora crasssa, the mutant exhibit poky phenotype, when a female of  poky strain is crossed with a normal strain acting as a male , all progeny individuals shows poky phenotype . however, the reciprocal cross resulted in all normal progeny. These results can be explained on the basis of 

TLS Online TPP Program

#Question id: 5845

#SCPH28 | Zoology

Which of the following statements is false?  In vitro, the strand-exchange reaction:

TLS Online TPP Program

#Question id: 5067

#SCPH28 | Zoology

The yolky eggs of birds undergo:

TLS Online TPP Program

#Question id: 16129

#SCPH06 I Botany

5 You are studying regulation of the yeast enzyme glutamine synthetase (GS), which is encoded by the GLN1 gene. You have isolated two mutants, designated gln2– and gln3–, that give decreased GS activity. Mating of either gln2– or gln3– haploids to wild type produces heterozygous diploids that show normal amounts of GS expression. When you cross either a gln2– or gln3– haploid to a gln1– strain the resulting diploids show normal expression of GS.

Describe the cis-acting elements in the GLN1 promoter that are evident from these experiments, giving both their position and as much of their function as you can deduce.

TLS Online TPP Program

#Question id: 14138

#I Life Science/ Life Sciences Group – I-V

BLAST uses heuristics to align a query sequence with all sequences in a database. 

Reason(R): BLASTX uses protein sequences as queries to search against a protein sequence database.